何坊水库水环境质量现状及成因分析

Analysis on the Current Situation and Causes of Water Environmental Quality of Hefang Reservoir

通过对何坊水库水质现状调查与监测,对水环境质量状况进行了单因子和富营养化评价。结果表明,何坊水库多数水域总磷在Ⅲ类以下,总氮在Ⅱ～Ⅲ类,总磷明显超标,已处于中营养向富营养过渡阶段。水库营养物含量较高的原因,除自然因素之外,人为活动加剧和管理不到位是主要因素。

Based on the investigation and monitoring of water quality of Hefang Reservoir,the single factor and eutrophication evaluation on the current water environment was given.The results show that total phosphorus（TP） in most water areas was below the Ⅲ grade,total nitrogen（TN） was between Ⅱ-Ⅲ grade,and the TP was obviously beyond the standard,keeping at the stage of change from nutrion to eutrophication.In addition to natural factors,increasing human activities and mismanagement were major factors that levels of nutrients were higher in the reservoir.